Curated OER
Pre History through Modern Day Timeline
Students explore the historical sequence of cultures throughout history. They demonstrate the ability to organize events in chronological order and demonstrate how time is measured and annotated.
Institute for Dynamic Educational Advancement
Web Exhibits: Calendars Through the Ages: Announcing the Sky
Well-organized website depicts the "Fascinating history of the human endeavor to organize our lives in accordance with the sun and stars." Gives an overview and specifics of the basis of calendars through the ages.